Carrier for stereopticons.



H. W. FORGE. CARRIER FOR STEREOPTIQONS. APPLICATION FILED JUNE 5, 1907Patented Jan.11, 1910.

ETS-SHEET 1 H. W. FORGE.

CARRIER FOB. STEREOPTIGONS.

APPLICATION FILED JUNE 5, 1907.

Patented Jan. 11,1910.

2 SHEETS-SHEET 2.

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HORACE W. FORGE, OF NEWBURGI-I, NEW YORK.

CARRIER FOR STEREOPTICONS.

Specification of Letters Patent.

Application filed June 5, 1907.

Patented Jan. 11, 1910. Serial No. 377,310.

To all whom it may concern:

Be it known that I, Honaon \V. Fonon, citizen of the United States,residing at Newburgh, in the county of Orange and State of New York,have invented certain new and useful Improvements in Carriers forStereoptieons, of which the following is a specification.

This invention is an improvement in carriers for magic lanterns,stereopticons and the like and especially designed for use in singlelanterns wherein the slides are exchanged behind elosed shutters, theold slide being returned to point of entrance, and its object being toprovide a device which will be simple and efficient in construction andcan be operated more quickly than the ordinary devices now in use.

The improved device has a reciprocating frame and oppositelyreciprocating shutters and guide ways which permit the slides to be putinto position through one way and discharged at the point of entrancethrough another way, and means being also provided to permit theshifting effect to take place behind closed shutters so that all theoperations can be performed automatically; when the shutters open thenew picture is seen upon the screen and the old slide is at startingpoint, or at end of carrier near the oper ator ready for removal.

The invention consists in the novel combinations and constructions ofparts as hereinafter described and claimed, and I will now describe thedevice in detail with reference to the accompanying drawings, whichillustrate a practical form thereof.

Referring to the drawings: Figure 1 is an elevation of the completecarrier; Fig. 2 is a longitudinal sectional view of the carrier showingframe retracted and in position to receive a slide; Fig. 3 is a similarview showing one slide in position at the exposing opening and anotherslide at point of entrance; Fig. l is a similar view showing theshutters closed and the slides being exchanged, that is the first slidein position to be removed and the new slide at the exposing opening;Fig. 5 is a transverse section on line 3-8, Fig. 1. Fig. (i is atransverse section on line 4 Fig. 1; Fig. 7 is a perspective view of thereciprocating frame; Fig. 8 is a perspective view of the registeringstops; Fig. 9 is a plan view of the shutter operating mechanism; Figs.10 and 11 are detail perspective views.

The carrier is designed to fit any regular lantern, and is placed in thefront or general slideway of the machine and is removable at will;suitable means being provided for properly registering the carrier inthe machine.

In the d awings, A designates the carrier frame, which may be made ofwood or metal, but preferably the latter. The case A as shown is shapedin cross section and provided with top and bottom front flanges a, a andis also provided with the usual exposing opening near one end of thecarrier. Fitted in the carrier at the top and bottom thereof are woodenstrips B, B, pro vided with grooves 7), b, 6 for the shutters andreciprocating frame to slide therein as will be hereinafter explained.

At each side of the exposing opening plates C, C are provided whichstrengthen the carrier, and are fitted. under the flanges a. a andprovided with angular turns adapted to fit behind the wooden strips Band may be held in place by screws through the outer edge of case; thuspresenting a strong and substantial case.

The plate C at the rear end of carrier sup ports on its under side,between said plate and rear shutter D the mechanism that controls theshutters. The front shutter D operates under front plate C. As shown theshutters D, D, are divided and slide respectively in grooves 7), o, inthe wooden strips B, B, and when the exposing opening is open theshutters are under the plates C, C. The shutters are in normal positionwhen closed.

Attached to shutter D a bar (Z connected to a swinging lever E whichcauses the shutters to act in unison. The rear shutter D is looselyconnected to the opposite end of the lever E bya short bar a, by studsriveted to rear of the shutter and to the lever but so as to move easilyand freely. At the opposite end of lever E is a stud e which works in anelongated slot (Z on the outer end of bar (Z, said slot having anenlarged opening (I for the reception of stud c which will be founduseful in assembla e and takin a oart.

As shown the bar (Z passes under the posing opening, and is hidden fromview by the flange a of the carrier. The lever E pivotally connected asat E to a plate F which latter is riveted or otherwise secured to plateC.

(t represents a spiral spring having one end fastened to an arm 7' ofplate I and its opposite end is connected to a link w which latter isloosely connected to the lever E at a point between the pivot E and studc: this spring causes the shutters to close automatically.

At the bottom and front edge of shutter I) is a projection or finger IIbent so as to work in a groove 7) in lower wooden strip B. This fingerII is adapted to be engaged by an upstanding 'atch or shoulder '2' ofthe reciprocating frame I and when the frame drawn out to the end ofcase the shutters are opened.

I designates a reciprocating frame which slides in the grooves 7Fprovided in both the upper and lower wooden strips. To the outer end ofsaid frame is hinged a handle or operating lever I having its outer endupturned as at I for convenience in in anipulation. The traveling frameis provided with an exposing opening of the same size as that of theopening in the carrier, primarily to lighten said frame and also to makeit useful for other styles of carriers and different uses to which thecarrier may be put. The lower side of the frame is provided with anupstanding flange '2" which prevents wearing of the groove 71 andmissplacement of the frame. The flange 2' has an upstanding catch orshoulder '2' which engages the finger II on shutter D and causes bothshutters to open. and to be held open as above explained.

strips K extend from the hinge to the opposite end and are preferablyriveted to the frame near the handle point. and such strips having theirouter ends Z' bent down at an angle of approximately degrees. ()n thisangle part another plate of metal Z" is riveted, the outer and lower endof which is turned out flat as at Z to form what I term a foot: theupper end of plate Z" extends above the plate Z- and forms a catch orhook. such end being beveled to provide a sharp edge to engage the end.of the slide and to present a smooth surface for the slide to pass overand on to the reciprocating frame. These catches hold the slide when theframe drawn back to the outer end of the case. Attached to the underside of frame I are two flat springs k Z. which assist in holding theslide to the back of the case.

L, L, represent two light bearing springs having one end fastened towooden strips B, B, and their other end held free and located betweenthe exposing opening and the outer, or operating end of the case. whichassist in holding slides on the frame.

like those in ordinary use except that in this instance they arereversed, and. are intended to hold the slide over the exposing openingand are securely fastened at the rear end of the case to the woodenstrips I3, 13.

Near the exposing opening at the rear of the carrier is an adjustablyslotted plate or back stop N, having its front end upturned as at a andturned back upon itself so as to form a cushioning spring for the slide,to prevent shock when the slide is pushed against it when placed inposition. This stop may be held in place by the screw and nut N, or ifdesired may be riveted to the back of case A; and prevents the slidebeing pushed too far back in the carrier and at thesame time preventtheslide moving away when being transferred to the reciproeating frame I.

In the lower wooden strip B is provided near the rear end of the case apin 0 which marks the extreme action of the reciprocating motion offrame I, and is also conven-- iently located to stop the frame whenslides 3-1- x 3:} are used, or with 4: inch slides. The shock caused byinsertion of a slide is also prevented by a device at end of handle offrame I, and as shown it consists of an angle piece P placed under theend of handle I and held in place by set screw P through slotted opening7) in the handle. The angle piece P drops in opening Q in the back ofthe case.

The means for pushing the new slide forward is located under the handleI and consists of a spring plate I having its outer end riveted to the.handle and its inner end The frame I has the same margin as the l slide.and along the margins thereof metal 5 free and upturned sufficiently topress on the surface of the slide to hold it against the back of thecase. A short plate I is riveted to the plate I near its inner end andhas its outer end turned down and used to push the slide through thecarrier. A stud I may be provided near the hinge and connected to thehandle I and pass through both plates 1*, I for the purpose of holdingthe spring plates in fixed limits.

In order to have the foot of each lifting spring pass under the slide tolift it with certainty a space is provided under the end of the slide asit rests over the exposing opening. This is made by having a depressionR in the bed of the case so as to have the slide elevated. Thin stripsof metal S may be provided running the entire length of the case underboth of the wooden strips B, I3, and suitably fastened and extending outto the top and bottom of the exposing opening giving the same marginfound on slides or the reciprocating frame. The depression is formed bycutting out the metal strips just beneath the end of the slide as itrests over the exposing opening. The feet i of the frame drop into theseplaces M,M, designate two bearing springs much and pass under the end ofthe slide, or short strips of metal may be fastened to the long metalstrips ateach side of the exposing opening leaving space under the endof the slide. In both methods however metal strips are fastened on theback of the case just inside of the metal strips S, and extend up to theexposing opening to support that end of the slide; the bottom of thefeet are beveled so as to slide up the slight incline caused by makingthis space. Either method forms a space and the feet of the liftingsprings pass under the end of the slide with certainty and without anytrouble whatever.

After the slide has been placed over the exposing opening the liftingsprings of frame I passing back over said slide would tend to draw itback again, but for a device to check it. This I call a registeringstopand consists of several spring teeth T formed from one side of anadjustable base T, said base being passed under the wooden strip B atthe top of the case and turned up behind the same and held in place bythe screw and nut T on the outside edge of the case. These springs areof different lengths one for 35; x 3% slides one for 33; x at inchslides and another for slides that are sometimes used which are slightlylonger than 4 inches. As shown the stop lies flat on the back of thecase and the spring fingers extend toward the exposing opening and ofsutlicient height to arrest a slide after passing over the suitable stopand to hold the slide in place. There may be as many steps as necessityrequires and they are readily adjusted for any particular size of slide.

Situated on the under side of upper wooden strip B at the outer end ofthe case is a device for holding the traveling frame and which also holdthe shutters open while a slide is being removed and it consists of thelocking spring U which is provided with a finger 2/ that engages a sloti in the frame I when the frame is drawn out thus permitting thewithdrawal of the slide and the handle is turned at right angles toinsert the next slide. A bar U is arranged across the front of thehandle and made fast to the latter and adjacent the hinge and of a widthto nearly fill the space between the wooden strips 13, B, and adapted totrip the locking spring U and permit the frame to move forward caused bytension of the spiral spring G attached to lever E. A pin V in lowerwooden strip engages the lower end of said bar U and holds the frame incheck and of course the shutters open. This pin also prevents drawingthe frame out too far. A slide is now inserted, the handle turned down,and the slide pushed forward over exposing opening. In connection withthis locking spring, a sliding spring catch TV is provided, and adaptedto lock the shutters open by means of an u iistanding beveled catch toentering slot (Z in front shutter D at the same time it is adapted toraise the locking spring U as the latter is unnecessary when the carrieris operated without shutters. When used in this way mica. with groundglass surface may be provided for the exposing opening of thereciprocating frame, or exposing opening in frame may be fitted ifdesired with a thin sheet of metal of lighter weight than that of whichthe frame I is made.

It will be observed that the new slide is introduced under the old slideand the latter is transferred to the frame and is carried back to thepoint of entrance, and does notslide back.

The operation of the frame places a slide over the exposing opening, andtransfers the old slide to the frame and returns it to the point ofentrance. On the inward movement of the frame the shutters are caused toclose and are so held until a new slide isplaced in position at theexposing opening and the old slide is withdrawn by the frame. and whensaid frame has reached a point where the rear end of said old slide haspassed the exposing opening the shutters are instantly opened.

Obviously various changes in construc tion may be made without departingfrom the spirit of the invention.

lVhat 1 therefore claim as new and desire to secure by Letters Patentthereon is:

1. An optical lantern, a carrier therefor, in combination with atraveling frame having a hinged handle, said. hinged connection adaptingthe handle to be turned through ninety degrees toward the right topermit the introduction of slides, and means for locking said frame inthe carrier.

2. In a carrier for lanterns, a casing, a traveling frame therein,having hinged operating handle adapted to push a slide to positionbetween said frame and the back of said casing, means for returning theslide to same end of carrier on the front of said frame, and means onsaid handle adapted to enter an opening in the back of said casingthereby preventing shock at back stop and to assist in registering aslide.

3. In a slide carrier, a shutter therein, the combination of a movableframe, a locking device therefor, said frame having a hinged handleadapted to be turned to the right at right angles to trip said lockingdevice thereby holding said frame fast and to keep the shutters openwhile the returned slide is being removed, a pin in the lower part ofthe carrier and means on said frame to engage said pin, substantially asdescribed.

4:. In a slide carrier, slmtters'therein, the combination of a travelingframe, a locking device therefor, a pin in the lower part of thecarrier, said frame having a hinged handle, a bar across the base ofsaid handle and projecting beyond the sides thereof, adapted to tripsaid locking device at its upper end, and its lower end adapted toengage said pin to hold said frame fast and also the shutters open untilnext exchange of slides and permit introduction of slides.

5. In a carrier for lanterns a casing, a traveling frame therein, havinghinged operating handle adapted to push a slide to position between saidframe and back of carrier, means for returning the slide to same end ofcarrier on the front of said frame; with shutters in said carrier, meanson said frame for causing the shutters to open when the frame is drawnback, and means for locking said frame to hold the shutters open.

6. In a carrier for lanterns, a traveling frame therein, provided withhinged operating handle, a pair of shutters, said frame adapted torelease said shutters, and to push a slide forward to position, means onsaid frame for raising the slide at the exposing opening and to transferit to said frame, a projecting lug or catch on the frame to engage a lugor catch on one of said shutters to cause the shutters to open when theframe is drawn back.

7. In a carrier, for lanterns, a traveling frame therein, provided withhinged operating handle, a pair of shutters, said frame adapted torelease said shutters, and to push a slide forward to position, means onsaid frame for raising the slide at the exposing opening and to transferit to said frame, a projecting lug or catch on the frame to engage a lugor catch on the outer shutter to cause the shutters to open when theframe is drawn back, and a spring locking device at end of carrieradapted to hold the frame when drawn back thereby preventing theshutters from closing until the frame again pushed forward. I

8. In a slide carrier, the combination of opposed members, a bar havingone end connected to one of said members and adapted to pass around theexposing opening, the opposite end of said bar connecting with one endof a swinging lever, and the opposite end of said lever being connectedto the other of said members, and a traveling frame in said carrier foroperating said members.

9. In a carrier for lanterns, the combina tion of opposed members, a barhaving one end rigidly connected to one of said members, the oppositeend of said bar connecting with one end of a pivoted lever and theopposite end of said lever being connected to the other of said membersby a short bar, a spring attached to said pivoted lever adapted to causesaid lever to act in one direction and cause said members to close.

10. In a carrier, removable grooved strips located in the top and bottomthereof, selfclosing shutters adapted to slide therein, a

bar connected with one of said shutters and to a swinging leverpivotally connected to the case, the opposite end of said lever beingconnected to the other of said shutters, a traveling frame in saidcarrier provided with a hinged handle; with means on the frame forcausin said shutters to open, and a sliding spring catch for causin saidshutters to be thrown out of action.

11. In a slide carrier, the combination of a reciprocating slidecarrying frame in said carrier a pair of oppositely traveling shutters,a pivoted lever to which said shutters are connected whereby theshutters are adapted to act in unison, a part carried by one of saidshutters disposed in the path of said frame, a spring for causing theshutters to close automatically in one direction when the shutters arereleased; whereby the shutters are closed during the insertion andwithdrawal of slides, and open when the rear edge of removed slidepasses the exposing opening.

12. In a slide carrier, a pair of oppositely reciprocating shutters, apivoted lever to which said shutters are connected whereby the shuttersare adapted to act in unison, a spring causing the shutters to closeautomatically when the shutters are released; a lug on one of saidshutters and a reciprocating frame in said carrier provided with aflange adapted to engage said lug when the frame is retracted.

13. In a slide carrier, the combination of a reciprocating frame, a pairof oppositely movable shutters in said carrier, controlling mechanismfor said shutters, a catch on the frame, a finger on one of saidshutters adapted to engage said catch to open the shutters, and springsfor holding the slide on said frame.

let. In a carrier, the combination of a reciprocating frame, a pair ofoppositely movable shutters in. said carrier, controlling mechanism forsaid shutters, a projection on the frame, a finger on one of saidshuttors adapted to engage said projection to open the shutters, springsfor holding the slide on said frame, and a second set of springs forholding slide over the exposing opening.

15. In a carrier, the combination of a reciprocating frame, a pair ofshutters, controlling mechanism therefor, an adjustable cushioningdevice to prevent shock when slide is placed over exposing opening andto prevent an old slide moving away while being transferred. to theframe.

16. In a carrier having an exposing opening and strengthening plates,the combination of a reciprocating frame provided with hinged operatinghandle, a pair of oppositely movable shutters, controlling mechanismtherefor located under one of said strengthening plates, an adjustablebackstop near the exposing opening to prevent shock when slide is placedover the exposing opening and to prevent old slide moving away whilebeing transferred to the frame.

17. In a carrier, the combination of a reciprocating frame provided withhinged handle, a pair of shutters, controlling mechi anism therefor, anadjustable cushioning device to prevent shock when slide is placed overthe exposing opening, and a shoulder on the upper end of said cushioningdevice to hold the slide being removed, parallel to that of the slidebeing inserted, and a stop at the inner end of the carrier for limitingthe inward movement of the frame.

18. In a slide carrier, having an exposing opening the combination of aframe provided with a hinged operating handle at its outer end, andmeans on said handle for pushing a slide over the exposing opening.

19. In a carrier, the combination of a traveling frame provided with ahinged op erating handle at its outer end, and means on said handle forpushing a slide over the 1' exposing opening, and means for locking theframe when retracted.

20. I11 a carrier, the combination of a reciprocating frame, a pair ofshutters, controlling mechanism therefor, an adjustable cushioningdevice to prevent shock when a slide is placed over the exposingopening; with an adjustable registering stop in said ing opening.

21. In a carrier having an exposing openframe, a pair of oppositelymovable shutters, controlling mechanism therefor, an adjustable backstopnear the exposing opening to prevent shock when a slide is placed overthe exposing opening; with an adjustable registering stop in saidcarrier adjacent the exposing opening for properly registering a slideat the exposing opening.

In a carrier, the combination of a reciprocating frame, a pair ofoppositely movable shutters, controlling mechanism therefor; with anadjustable registering stop provided with a series of fingers adapted toregister a slide at the exposing opening.

23. In a carrier, the combination of a reciprocating frame, a pair ofshutters mov able in opposite directions, controlling mechanismtherefor; with an adjustable registering stop in said carrier adjacentthe exposing opening provided with a series of fingers of varyinglengths adapted to register a slide at the exposing opening.

24. In a slide carrier, the combination of a reciprocating frame, a pairof oppositely movable shutters in said carrier, controlling the fronting the combinatlon of a reciprocating? mechanism for said shutters, acatch on the frame a finger on one of said shutters adapted to engagesaid catch to open shutters; with a locking spring adapted to engage aslot in the frame to hold the shutters closed, and means on said framefor causing the release of said locking spring so that the frame can beoperated.

25. In a carrier, the combination of a reciprocating frame, a pair ofoppositely movable shutters in said carrier, controlling mechanism forsaid shutters, a projection on the frame, a finger on one of saidshutters adapted to engage said projection to open the shutters, springsfor holding the slide on said frame, and a second set of springs forholding the slide over the exposing opening; with a locking springprovided with a catch adapted to engage a slot in the f 7211116 to holdthe shutters closed, and means on said frame for causing the release ofthe catch so that the frame can be reciprocated.

26. In a carrier, the combination of a reciprocating frame, a pair ofoppositely mov able shutters, controlling mechanism therefor; with aspring catch adapted to engage a slot in the end of one of said shuttersand hold said shutters opened until released by said frame.

27. In a carrier, the combination of a re ciprocating frame, a pair ofshutters movable in opposite directions, controlling carrier forregistering a slide at the expos mechanism therefor; with a slidingspring catch adapted to enter a slot in the end of shutter and hold theshutters opened until released by said frame.

28. In a carrier, the combination of a traveling frame, provided withfeet at its inner end, strips placed in carrier above and be low theexposing opening provided with depressions near the exposing openinginto which the feet of the frame drop for the purpose of lifting theslide at the exposing opening to be removed from the carrier.

29. In a slide carrier, the combination of a reciprocating frame,provided with lifting feet at. its inner end, metal strips placed inthecarrier above and below the exposing opening on which the slide restsand provided with depressions at the end of the slide for the feet ofthe frame to enter and thereby lift the slide to the frame for thepurpose of withdrawing the same from the carrier, all substantially asdescribed.

In testimony whereof I afiix my signature in presence of two witnesses.

HORACE IV. FORGE.

Vitnesses JOHN D. NoRMoYLn, JAMES R. MANSFIELD.

